• Morning Low ::12.63 | < 12.63 | < 12.39 | < 12.03     Yield :: 900 | 540 | 230 | 100 | 90
    Morning Low is the voltage before any use.
    Yield is the power used including power via the inverter. ~  I  Indicates Inverter Use (Fridge + +)

    7th July ::: ML V=12.91Y=370Wh   I 
    6th July ::: ML V=12.78Y=740Wh   I 
    5th July ::: ML V=12.66Y=530Wh   I 
    4th July ::: ML V=12.70Y=190Wh
    3rd July ::: ML V=12.64Y=270Wh 12.64 Left router on all night.
    2nd July :: ML V=12.87Y=490Wh   I 
    1st July ::: ML V=12.74Y=230Wh   I 

  • Run a 6mm copper bar via a terminal block from the inner wall to the outer. Have yet to connect the rod to the external earth.

    6mm rod held of from wall by paduk block.

    July 4th Have used old stiff 7 strand 3mm earth wire and connected MPPT, Battery and Inverter to earth block.

    Earthing of inverter, battery and MPPT. (Highlighted)

  • Morning Low ::12.63 | < 12.63 | < 12.39 | < 12.03     Yield :: 900 | 540 | 230 | 100 | 90
    Morning Low is the voltage before any charge or use, if I'm up, else it is the lower value of max and min.
    Yield is the power used including power via the inverter. ~  I  Indicates Inverter Use (Fridge + +)

    30th June : ML V=12.82   Y=120Wh
    29th June : ML V=12.87Y=100Wh
    28th June : ML V=12.91Y=360Wh   I 
    27th June : ML V=12.71Y=170Wh   I 
    26th June : ML V=12.74Y=100Wh
    25th June : ML V=12.79Y=900Wh   I 
    24th June : ML V=12.87Y=910Wh   I 
    23rd June : ML V=12.78Y=830Wh   I 
    22nd June: ML V=12.68Y=100Wh
    21st June : ML V=12.71Y=110Wh
    20th June : ML V=12.82Y=500Wh   I 
    19th June : ML V=12.75Y=160Wh
    18th June : ML V=12.70Y=130Wh
    17th June : ML V=12.87Y=130Wh
    16th June : ML V=12.83Y=280Wh   I 
    15th June : ML V=12.83Y=770Wh   I  Checked electrolyte levels.
    14th June : ML V=12.79Y=110Wh   I 
    13th June : ML V=12.83Y=70Wh
    12th June : ML V=12.79Y=80Wh
    11th June : ML V=12.74Y=190Wh   I 
    10th June : ML V=12.83Y=90Wh
    9th June ::: ML V=12.75Y=150Wh   I 
    8th June ::: ML V=12.58Y=80Wh ML V=12.58 ???
    7th June ::: ML V=12.90Y=250Wh   I 
    6th June ::: ML V=12.75Y=320Wh   I 
    5th June ::: ML V=12.67Y=310Wh   I 
    4th June ::: ML V=12.74Y=340Wh   I 
    3rd June ::: ML V=12.75Y=220Wh
    2nd June :: ML V=12.79Y=950Wh   I 
    1st June ::: ML V=12.87Y=910Wh   I 

  • The batteries arrived today with the MPPT and have been installed. It was late in the day before I had finshed and initially the controller went to bulk then abs.

    The first thing I did was to make a stainless steel backplate to fasten the controller to and use copper and plastic tubing to keep it off the wall, only a centimetere or so.

    I have also connected the 1200w inverter, but there is no other loading.

    Layout of supply and controls

    Layout of supply and controllers

    May 7th Battery voltage of the 2 x S6 145's in series was 12.76. The electrolyte was high in one cell so I distributed it amongst all six.

    Cable from MPPT to batteries is approx AWG 8 or 8.4² (50 amps)

    Could do with
    See https://www.altecautomotive.co.uk/25mm2--4-awg-automotive-cable-17000amp-2040watts-rated-various-colours-available-375-p.asp

    May 9th Electrolyte levels are fine

    Measured the SG.

    May 13th Must use VE Direct USB to set up MPPT and equalise.

    June 17thHave fitted a fuse box to inverter output and wiring from there to a) 6A fuse to wiring for sockets to a double socket about the workbench, a double socket by the computer platform and wire to a further socket by the steps. b) 16A fuse for cable to external socket and c) Unfused to a 3 gang row above the electric work bench.

    So for power to any 1) switch on inverter, 2) switch on fuse box.

    I will not be making a spreadsheet of input and output for a while.

  • The three sizes I am interested in are: Data, prices and links as of June 2020

    2 x 4mm2 x 6mm2 x 10mm
    Rated Amps303951
    OD in mm9.611.814.5
    Loss mV/A/m127.84.6
    Cost £/m 2.413.414.33

    For more detail and other sizes see H07RN-F Data Sheet from ukcables.co.uk

  • Probably not a lot of noteable acitivity in the box, but it is the object of speculation. The lid being only 7" x 3" with a depth of some 3 and 3/8ths. It weights some 6lb 10oz (3Kg). The content seems to be a block that can move a little vertically but there is no detecteble movement, by hand, horizontally.

    uncanny steel box
    Sealed steel box

    The box has been sealed by what looks like solder and what would be important enough to seal from the air. Including the steel box that appears to be a maximum of 1/16" thick the density is (weight / volume) = 3Kg ÷ 1.14Lt = 2.63.

    The density is to hight for paper money or any sort of biological matter. Most metals have a higher density and why would a piece of metal be so contained?

    Well after some 32 years or more maybe it's time to open the bow, by grinding off the lid edges.

    uncanny steel box
    Sealed steel box item uncovered

    uncanny steel box
    Sealed steel box item removed

    uncanny steel box
    Sealed steel box item exposed